#include "bits/stdc++.h"

using namespace std;

int main() {
	ios::sync_with_stdio(false);

	int n, m;
	cin >> n >> m;
	vector<int> nums;
	nums.reserve(n);
	vector<int> where;
	where.reserve(n);
	vector<int> segments;
	segments.reserve(n);

	bool new_seg = false;
	int segi = 0;
	segments.push_back(0);
	int odds = 0;
	for (int i = 0; i < n; i++) {
		int num; char c;
		cin >> num;
		cerr << "num: " << num << '\n';
		if (i < n-1) cin >> c;
		nums.push_back(num);

		if (new_seg) {
			if (segments[segi] == 0) odds++; 
			segi++;
			segments.push_back(0);
		}
		where.push_back(segi);
		segments[segi] += 1 - (num%2);
		cerr << "segi: " << segi << '\n';

		if (c == '+' || c == '-') new_seg = true;
		else new_seg = false;
		cerr << "odds: " << odds << '\n';
	}

	if (segments[segi] == 0) odds++; 

	cout << ((odds % 2 == 1) ? "odd\n" : "even\n");

	for (int i = 0; i < m; i++) {
		// cout << segments[0] << " " << odds << " ";
		int pos, val;
		cin >> pos >> val;
		pos--;
		int old = nums[pos];
		nums[pos] = val;
		if(segments[where[pos]] == 0) odds -= 1;
		segments[where[pos]] += (old%2) - (val%2);
		if(segments[where[pos]] == 0) odds += 1;
		cout << ((odds % 2 == 1) ? "odd\n" : "even\n");
	}

	return 0;
}